package com.szy.news.util;

import java.security.MessageDigest;

public class ToMD5 {
	public static String md5(String str) {  
        MessageDigest md5 = null;  
        try {  
            md5 = MessageDigest.getInstance("MD5");  
        } catch (Exception e) {  
            e.printStackTrace();  
            return "";  
        }  
  
        char[] charArray = str.toCharArray();  
        byte[] byteArray = new byte[charArray.length];  
  
        for (int i = 0; i < charArray.length; i++) {  
            byteArray[i] = (byte) charArray[i];  
        }  
        byte[] md5Bytes = md5.digest(byteArray);  
  
        StringBuffer hexValue = new StringBuffer();  
        for (int i = 0; i < md5Bytes.length; i++) {  
            int val = ((int) md5Bytes[i]) & 0xff;  
            if (val < 16) {  
                hexValue.append("0");  
            }  
            hexValue.append(Integer.toHexString(val));  
        }  
        return hexValue.toString();  
    }  
}
